Nanotechnology: An Avenue of Possibilities
Nanotechnology is an interdisciplinary approach of science, engineering and technology.
This term got significance in 1959 when Richard Feynman proposed his vision in front of researchers about the deducing force of atomic manipulation entitled “There is plenty of room at the bottom”. A process in which scientists would be able to manipulate and control individual atoms and molecules. Nanotechnology widely defined to build structures, materials and systems with atomic precision. The science involves make it fascinating in different aspects of technological developments. It has given a new dimension to the scientific community on account of having unusual properties from their bulk counterpart. These unique properties may be mechanical, electrical, or photochemical and are not seen in the bulk materials. It is used to indicate the reduction factor of 10-9 times. When used in terms of nanotechnology and nanomaterials, its stand for nanometer which represents a distance of one billionth of a meter.
We have successfully prepared monophasic nanoparticles of Ba1-xMxZrO3 (x = 0.05, 0.10, 0.15 and 0.20 at 900°C for the first time by inverse microemulsion route using tergitol as a surfactant. Mixed shapes (cubic, spherical and hexagonal) of particles were formed, with good dielectric properties such as high dielectric constant with low dielectric loss. The material used to make humidity sensing device. The capacitive response graph of the device showed the increase in the capacitance on increasing the percentage humidity, which exhibits the good sensing properties of the material.
Intensive research has been carried out on perovskite materials because of their unique properties. Zirconium based perovskite materials also gained much attention because of their applications like multilayered capacitors. Barium Zirconate (BaZrO3) is a classic ABO3 perovskite dielectric material which is chemically and mechanically stable and widely utilized to manufacture electronic components such as multilayered capacitors (MLCs), PTC thermistors, piezoelectric transducers, and a variety of electro-optic devices. Barium Zirconate (BZ) is a good candidate for many structural applications such as crucible material for synthesis of barium based high Tc superconductors, substrate for thin films deposition; thermal barrier coatings in aerospace industries and material for interface engineering of alumina fiber–alumina matrix composites.
Research Article Published in Elsevier-2017
T. Ahmad, M. Ubaidullah, I. H. Lone, D. Kumar, and O. A. Al-Hartomy, Mater Res Bull., (2017) 89, 185-192.
T. Ahmad, M. Ubaidullah, M. Shahazad, D. Kumar and O. A. Al-Hartomy, Mater. Chem. Phys., (2017) 185, 31-38.